OoL digest — April 10 edition

This week we have 6 new papers on the origin of life. Enjoy!


What Would an Alien Amino Acid Alphabet Look Like and Why?
Brown et al. – Astrobiology

Thermal Stability of (Bio)Carbonates: A Potential Signature for Detecting Life on Mars?
Perron et al. – Astrobiology

Linking Methanogenesis in Low-Temperature Hydrothermal Vent Systems to Planetary Spectra: Methane Biosignatures on an Archean-Earth-like Exoplanet
Seeburger et al. – Astrobiology

Earth Sciences

Eoarchean and Hadean melts reveal arc-like trace element and isotopic signatures
Chowdhury et al. – Nature Communications


Graphitic inclusions in zircon from early Phanerozoic S-type granite: Implications for the preservation of Hadean biosignatures
Vogt et al. – Geochimica et Cosmochimica Acta


Scientific progress, normative discussions, and the pragmatic account of definitions of life
Schoenmakers – Synthese